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Isolated pi-Interaction Sites in Mesoporous MOF Backbone for Repetitive and Reversible Dynamics in Water

文献类型：期刊论文

作者Deng, Hexiang2,3; Cong, Hengjiang3; Deng, Feng1; Zhang, Liang2; Zhang, Wenhao3; Zhao, Ligong3; Yan, Wei3; Liu, Zhiyu3; Liu, Qi3; Li, Shenhui1
刊名ACS APPLIED MATERIALS & INTERFACES
出版日期2019-01-09
卷号11期号:1页码:973-981
关键词metal-organic framework isoreticular synthesis specific pi-interaction large organic molecules inclusion rotational-echo double-resonance experiments
ISSN号1944-8244
DOI10.1021/acsami.8b19211
英文摘要We report the introduction of pi-interaction sites into a series of chemically robust metal organic frameworks (MOFs), MOF-526,-527, and -528, with progressively increased pore size, 1.9-3.7 nm, and the inclusion and release of large organic molecules in water. The mesopores in these MOFs lead to fast adsorption kinetics, whereas the pi-interaction between isolated porphyrin units in the MOF backbone and polycyclic structure of the organic guests provides excellent reversibility. Specifically, seven large organic dyes were quantitatively captured by the porphyrin units of these MOFs in a 2:1 molar ratio, exhibiting unprecedented kinetics for MOFs [e.g., 4.54 x 105 L/mol for rhodamine B] at an extremely low concentration (10 ppm) in water. Rotational-echo double-resonance NMR experiments revealed that the distance between the guest molecules and porphyrin units in MOFs was in the range from 3.24 to 3.37 A, confirming the specific 2r-interaction. Repetitive and reversible dynamics was achieved in these MOFs for 10 complete inclusion release cycles without any decay in performance, which is ideally suited for the removal and recycle of large polycyclic organic molecules from water. The performance of MOF-526 rivals that of state-of-the-art carbon and polymers. KEYWORDS: metal organic framework, isoreticular synthesis, specific pi-interaction, large organic molecules inclusion, rotational-echo double-resonance experiments
WOS关键词METAL-ORGANIC FRAMEWORKS ; FUNCTIONAL-GROUPS ; RHODAMINE-B ; ADSORPTION ; COORDINATION ; INSIGHTS
资助项目National Natural Science Foundation of China[21471118] ; National Natural Science Foundation of China[91545205] ; National Natural Science Foundation of China[91622103] ; National Key Basic Research Program of China[2014CB239203] ; China Postdoctoral Science Foundation[2017M622500] ; Innovation Team of Wuhan University[204201710232]
WOS研究方向Science & Technology - Other Topics ; Materials Science
语种英语
WOS记录号WOS:000455561200103
出版者AMER CHEMICAL SOC
资助机构National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key Basic Research Program of China ; National Key Basic Research Program of China ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; Innovation Team of Wuhan University ; Innovation Team of Wuhan University ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key Basic Research Program of China ; National Key Basic Research Program of China ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; Innovation Team of Wuhan University ; Innovation Team of Wuhan University ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key Basic Research Program of China ; National Key Basic Research Program of China ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; Innovation Team of Wuhan University ; Innovation Team of Wuhan University ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key Basic Research Program of China ; National Key Basic Research Program of China ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; Innovation Team of Wuhan University ; Innovation Team of Wuhan University
源URL[http://ir.wipm.ac.cn/handle/112942/14310]  
专题中国科学院武汉物理与数学研究所
通讯作者Deng, Hexiang; Deng, Feng
作者单位1.Chinese Acad Sci, Wuhan Inst Phys & Math, Natl Ctr Magnet Resonance Wuhan, State Key Lab Magnet Resonance & Atom & Mol Phys, Wuhan 430071, Hubei, Peoples R China
2.Wuhan Univ, UC Berkeley Wuhan Univ Joint Innovat Ctr, Inst Adv Studies, Wuhan 430072, Hubei, Peoples R China
3.Wuhan Univ, Coll Chem & Mol Sci, Minist Educ, Key Lab Biomed Polymers, Wuhan 430072, Hubei, Peoples R China
推荐引用方式
GB/T 7714		 Deng, Hexiang,Cong, Hengjiang,Deng, Feng,et al. Isolated pi-Interaction Sites in Mesoporous MOF Backbone for Repetitive and Reversible Dynamics in Water[J]. ACS APPLIED MATERIALS & INTERFACES,2019,11(1):973-981.
APA Deng, Hexiang.,Cong, Hengjiang.,Deng, Feng.,Zhang, Liang.,Zhang, Wenhao.,...&Xu, Xiaohui.(2019).Isolated pi-Interaction Sites in Mesoporous MOF Backbone for Repetitive and Reversible Dynamics in Water.ACS APPLIED MATERIALS & INTERFACES,11(1),973-981.
MLA Deng, Hexiang,et al."Isolated pi-Interaction Sites in Mesoporous MOF Backbone for Repetitive and Reversible Dynamics in Water".ACS APPLIED MATERIALS & INTERFACES 11.1(2019):973-981.

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来源：武汉物理与数学研究所

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